Ireally really need with this
if 3 l n2 and 3 lh2 are mixed and react according to the equation below, how many liters of unreacted gas remain? assume temperature and pressure remain constant.
n2(g) + 3h2(g) → 2nh3(g)

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.